Printing-press.



No. 634,3". Patented oct. 3, |899. J. A. svENssoN.

PRINTING PRESS.

(Application lad Jan. 10, 1'899.;

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NTTED STATES PATENT EETEE.

PRINTING-PRESS.

SPECIFICATION forming part of Letters PatentNo. 634,31 1, dated October 3, 1899.

Application filed January 10,1899.' Serial No. 701,749. (No model.)

T0 all whom it may concern:

Be it known that I, J OHAN ALFRED SvENs- SON, a subject ofk the King of Sweden and Norway, residing at hVashington, in the District of Columbia, have invented new and useful Improvements in Printing-Presses, of which the following is a specification.

My invention relates to perfecting printingpresses of that class or description in which two stationary form-beds are employed, over which pass reciprocating carriages carrying impression-cylinders which print on both sides of the web at a single passage through the 1nachine,'a'nd the said cylinders printing two impressions at each reciprocation of the carriages.

The principal object of the invention is to provide an improved construction of such presses whereby the web is continuously fed to and delivered from the feeding-in and feeding-out ends of the machine, but is intermittently fed between the ends-that is to say, the web is fed continuously to and delivered from the looping-rollers, but is stopped between said rollers during the time the carriages and impression-cylinders are traveling over the form-beds to print the impressions and started when said cylinders leave the form-beds, so as to present a new surface to be printed, the construction being such that the web is held taut at each side of the looping-rollers, thus preventing slack during the operation of the machine.

It is also an object to provide improved means for continuouslyand intermittently feeding the web at the proper speed and at the proper times and also for regulating the registering mechanism, whereby the impressions made by the second impression-cylinder can be made to accurately register with those of the first.

It is also an object to so improve the inacllines generally that the reciprocating parts will be balanced and the rotatable parts caused to move in the proper direction at the proper times and at the proper speed.

The vinvention consists in the novel construction and combination of parts hereinafter fully described and claimed'.

In the accompanying drawings, Figure lis a diagrammatic sectional view showing so much of a printing-press made in accordance with my invention as is necessary to enable any one skilled in the art to make and use the same. Fig. 2 is a detail sectional view showing the means for rotating the second or delivery looper-roller and guide-roller-driving gear. Fig. 3 is a similar view showing rthe manner of journaling the first feed-roller. Fig. it is a view similar to Fig. l, showing a moditied construction. Fig. 5 is adetail sectional view showing the arm which carries the looping-rollers. Fig. 6 is a perspective View showing means, for positively driving the guide-rollers, around which the continuous web passes.

In the said drawings, referring now to Figs. l, 2, and 3, the reference-letters A and B designate, respectively, the first and second stationary form-beds and the numerals 1l and 2 the reciprocating carriages, which travel over the same, each provided with an impressioncylinder 3, coacting with the stationary form- 'beds and with a series of guide-rollers 4, around which the continuous web passes, and with inking-rollers 5. These parts may be of any ordinary or suitable construction-and in themselves constitute no part of my present invention. Each of these carriages is provided with an extension G, formed at one end with a slot 7, in which works a slide-block S. Connected with these slide-blocks are wristpins 9 on the ends of disks 10, carried by a vertical shaft 12, driven by any suitable means. These disks and extensions form what is known as a Scotts yoke, so that a detailed description thereof is not necessary. The said wrist-pins are diametrically opposite each other, so that the carriages are balanced in their movements, and which carriages reciprocate oppositely or reversely to each otherthat is to say, when one carriage is traveling toward the right of the machine the other is traveling toward the left.

The numeral 13 designates the continuous paper-web, mounted at the front end of the machine, as usual, and passing around the feeding-in rollers la and l5. The shaft 1G of the first feeding-in rollers 14 is eccentric to the axis thereof and is secured to bearings in the frame of the machine. The said feedingin roller is loosely journaled on the shaft lt. Secured to the end of the shaft of said roller is a crank-arm 1S, to which is secured a screw ll, provided with a hand-wheel 19, by means of which the pressure of the feeding-in roller may be regulated.

The numeral 2O designates the iirst or feeding-in looping-roller, and 2l the second looping or delivery roller. These rollers are earried by an angle-arm 23, secured to a transverse shaft 24, provided with an intermittently-operating gear 25 and a continuouslyruiming gear 26,driven by any suitable means, both ot' which gears are loosely journaled on the shaft. Meshing with this gear 26 is a rotatable pinion 27, which also meshes with a pinion 2S on the end of the second loopingroller 2l and which in turn meshes with the gear 25. The gear 25 also meshes with a pinion on the end of the looping-roller 2O for driving the latter. Also meshing with this gear 25 is a pinion 2S, which is also in mesh with a pinion at the end of the guide-roller 2i), around which the paper-web passes. The numerals 30 and 3l designate the delivery or feeding-out rollers continuously driven by the gears 32 and 34, operated by the gear 26.. The numerals 35 and 236 designate similar gears also driven by said gear 26 for continuously rotating the feeding-in rollers.

Meshing with the intermittently-rotating gear 25 is a gear 37, which in turn meshes with a gear 38, by which the guide-rollers 30 and 40 are rotated through the intermediate gears 4l and 42. At the opposite end of the machine are guide-rollers 43 and 45, around which the paper-web passes on its way to the second form-bed, which rollers are intermittently rotated by the gears 46, 47, 4S, 49, and 50. rlhe upper guide-roller is carried by an arm 5l, pivoted to the shaft ot the gear 4S, so that it can be moved to and from the second paper-carriage in order to regulate the registering mechanism. The gears 49 and 50 are also carried by this arm.

Secured to the shaft of the second feedingin roller 15 is a cam 52, which engages a roller 53 on the lower end of the angle-arm, which carries the looping-rollers. This earn is so timed as to make two revolutions for each complete reciprocation of the carriages which carry the impression-cylinders.

Before describing the operation of the machine I would say that the double arrows indicate reciprocating parts, the single arrows continuously-moving parts, and the broken arrows intermittently-moving' part or parts which alternately start 'and stop. The circles which are cross-hatched represent rollers and shafts and the plain circle gears.

The operation is as follows: The paper-web is carried from the front feeding-in rollers around the guide-rollers and impression-cylinders to the feeding-out or delivery rollers. The machine is now set in operation, when the carriages carrying the impression-cylinders will reciprocate over the form-beds, making two impressions at each complete reciprocation-that is, one at the forward movement of the carriages and one on the return movement. During the time the impressions are being made the feed of the web between the looping-rollers must be stopped. This is accomplished by the movable looping-rollers. As shown, these rollers are carried by the pivoted angle-arm, and as the carriages approach the form-beds the cams will elevate the lower arm of the said angle-arm, throwing the first looping-roller away from the feedingin rollers and the second looping-roller toward the delivery or feeding-out rollers. During this movement the gears of the looping-rollers will move in a direction opposite to the movement of the gear 25, checking or stopping the movement thereof and of the guide-rollers, so that the movement of the web between the looping-rollers will be stopped. \Vhen the carriages pass olf of the form-beds, the movement of the cam 52 will allow the looping-rollers to return to their normal positions and the guide-rollers to rotate, so thatafreshsurface will be carried over the form-beds for the next impression. As thelooping-rollers move to stop the feed of the web the Iirst loopingroller will cause the feed of the web thereto from the feeding-rollers to be continuous, while the second looping-roller will allow the web to be continuously delivered or fed out of the machine. These looping-rollers will thus compensate for the intermittent feed of the web between the same, so that when the interrupted feed of the web is again started the necessary surface to be printed upon will be presented to the impression-cylinders. It will be noted that when the arm carrying the looping-rollers is moved by the cam to stop the feed, said rollers acting or moving oppositely to the gear 25, the latter will be stopped, while said rollers in returning to normal position will travel in thedirection of said gear, allowing the latter to rotate. The gears and rollers are so timed and proportioned that they will all rotate the same surface speed as the feed ot' the web, thus insuring the perfect operation of the machine. By swinging the arm 51, carrying guide roller 45, toward or away from the second carriage, the registering of the web is regulated, so that the impressions made by the second impression-cylinder will accurately register with those made by the first. The cam 52 is so timed that it will make two revolutions for each complete reci procation of the carriages which carry the impression-cylinders.

Referring now to Figs. 4, 5, and (5, I have shown a modiiied construction of arm which carries the looping rollers, and have also lOO IIO

shown means for positively driving the guiderollers carried by the impression-cylinder carriages. In this instance the arm which carries the looping-rollers is straight instead of angular, but the principle is the s-ame. .The intermittently-operating gearing is also somewhat differently arranged, and comprises the gear 26, formed with internal teeth 2Gb, the pinions .27n and 2Sb meshing therewith, and which mesh with the gear 25, similar to the gear 25, before described; but the operation will be readily understood. Passing around the guide-rollers are endless belts 54, which cause a positive movement to be given to said rollers, as will be seen by reference to Fig. 6.

Having thus fully described my invention, what I claim isv l. In a perfecting printing-press, the combination with the carriages .alternately reciprocating in opposite directions, the looping-rollers at the feeding-in and delivery ends of the machine,` continuously rotating on their axes and oscillatin g in the arc of a circle, and means for rotating and means for oscillating the same, of means for feeding a paperweb continuously to and delivering it continuously from the machine and means for intermittently feeding said web between the feeding-in and delivery ends of the machine, substantially as described.

2. In a perfecting printing-press, the conlbination with the carriages alternately reciprocating in opposite directions, the looping-rollers at the feeding-in and delivery ends of the machine, and means for rotating the same on their axes and oscillating them in the arc of a circle, the continuously-rotating gears carried by said rollers, the intermittently-operating gear and means for operating the same, of means operated by said intermittently operating gear for intermittently feeding a paper-web between the feeding-in and delivery ends of the machine, substantially as described.

In a perfecting printing-press, the combination with the carriages alternately -reciprocating in opposite directions, loopingrollers at the feeding-in and delivery ends of the machine, the pivoted arm carrying said rollers, means for continuously rotating said looping-rollers and the cam engaging with said arm for operating the same and oscillating the rollers in the are of a circle, of the means for continuously feeding a paper-web to and delivering it continuously vfrom the machine and means for intermittently feeding said web between the feeding-in and delivery ends of the machine, substantially as described.

4. In a perfecting printing-press, the combination with the carriages alternately reciprocating in opposite directions, the continuously-operating feeding and delivery rollers, the pivoted arm, the looping-rollers carried thereby and located at different sides of its fulcruni, and the intermediate intermittently-operating guide-rollers and gears and contiuuously-operating gear and connections whereby the intermediate gears and guide-rollers are operated, substantially as described.

' 5. In a perfecting printing-press, the combination with the feeding-in and delivery'rollers, of the arm carrying the looping-rollers, the gears connected therewith, the intermittently-operating gears meshing with said gears, the continuously-operating gear meshing with the gear of one of the looping-rollers, the reciprocating carriages provided with impression-cylinders coacting with the stationary form-beds, and means for operating the arm carrying the looping-rollers, substantially as described.

6. In a perfecting printing-press, the combination with the stationary form-beds, the carriages alternately reciprocating in opposite directions, the impression-cylinders and the guide-rollers and gears, of a pivoted arm, the looping-rollers carried thereby at different sides of its fulcrum, and the cam for operating said arm, and means for operating said guide-rollers and gears, substantially as described.

7. lIn a perfecting printing-press, the combination with the stationary form-beds, the reciprocating carriages, the impression-cylinders, the guide-rollers and the intermittently-operating gears, of the continuouslyoperating driving-gear, the continuously-operating pinion meshing therewith, the pini'on meshing with said pinion, the pivoted arm carrying the same, the looping-rollers journaled to said arm and provided with in termittently-operating pinions, the cam for operating said arm and the continuously-operating feeding and delivery rollers, substantially as described. A

8.' In a perfecting printing-press, the combination with the stationary form-beds, the carriages alternately operating in opposite directions, and the impression-cylinders carried thereby, of the guide-rollers intermediate said carriages, the gears for operating the same, the pivoted arm carrying one of said guide-rollers, and the intermittently-operating gears for driving the guide-rollers carried by said pivoted arm, the construction being such that by moving said arm the length of the path of the paper-web can be varied, substantially as described.

9. In a perfect-ing printing-press, the combination with the stationary form-beds, the oppositely-reciprocating carriages, and the impression-cylinders carried thereby, of the vertical shaft, the disks secured thereto provided with diametrically oppositewrist-pins, the sliding blocks workin g in slots in said carriages for reciprocating the same, substantially as described.

IO. In a perfecting printing-press, the com- IOO IIO

bination with the interniittently-operating means for rotating and means for oscillating.,r 1o guide-rollers and the gears for operating the lhe same, substantially as described.

my hand in presence of two subscribing witnesses.

ing in opposite directions, and the stationary forni-beds, of the endless bands passing,r

around said guiderollers, the eontinuouslyi operating feeding-in and delivery rollers, the lVitnesses:

same, the carriages alternately reeiprooat-i In testimony whereof I have hereunto set l J. ALFRED SVESSON.

EMMA M GILLE'r'r, BENNETT S. JoNEs.

looping-rollers continuously rotating on their axes and oscillating in the are of a eirele, and 

